- Added 'hw status'. This command makes the ARM print out some runtime information. (holiman)
- Added 'hw ping'. This command just sends a usb packets and checks if the pm3 is responsive. Can be used to abort certain operations which supports abort over usb. (holiman)
- Added `data hex2bin` and `data bin2hex` for command line conversion between binary and hexadecimal (holiman)
+- Added Topaz (NFC type 1) protocol support ('hf topaz reader', 'hf list topaz', 'hf 14a raw -T', 'hf topaz snoop'). (piwi)
+- Added option c to 'hf list' (mark CRC bytes) (piwi)
+
### Changed
- Revised workflow for StandAloneMode14a (Craig Young)
ReadPCF7931();
cmd_send(CMD_ACK,0,0,0,0,0);
break;
+ case CMD_PCF7931_WRITE:
+ WritePCF7931(c->d.asDwords[0],c->d.asDwords[1],c->d.asDwords[2],c->d.asDwords[3],c->d.asDwords[4],c->d.asDwords[5],c->d.asDwords[6], c->d.asDwords[9], c->d.asDwords[7]-128,c->d.asDwords[8]-128, c->arg[0], c->arg[1], c->arg[2]);
+ break;
case CMD_EM4X_READ_WORD:
EM4xReadWord(c->arg[1], c->arg[2],c->d.asBytes[0]);
break;
void ModThenAcquireRawAdcSamples125k(int delay_off,int period_0,int period_1,uint8_t *command);
void ReadTItag(void);
void WriteTItag(uint32_t idhi, uint32_t idlo, uint16_t crc);
+
void AcquireTiType(void);
void AcquireRawBitsTI(void);
void SimulateTagLowFrequency(int period, int gap, int ledcontrol);
int IsBlock0PCF7931(uint8_t *Block);
int IsBlock1PCF7931(uint8_t *Block);
void ReadPCF7931();
+void SendCmdPCF7931(uint32_t * tab);
+bool AddBytePCF7931(uint8_t byte, uint32_t * tab, int32_t l, int32_t p);
+bool AddBitPCF7931(bool b, uint32_t * tab, int32_t l, int32_t p);
+bool AddPatternPCF7931(uint32_t a, uint32_t b, uint32_t c, uint32_t * tab);
+void WritePCF7931(uint8_t pass1, uint8_t pass2, uint8_t pass3, uint8_t pass4, uint8_t pass5, uint8_t pass6, uint8_t pass7, uint16_t init_delay, int32_t l, int32_t p, uint8_t address, uint8_t byte, uint8_t data);
void EM4xReadWord(uint8_t Address, uint32_t Pwd, uint8_t PwdMode);
void EM4xWriteWord(uint32_t Data, uint8_t Address, uint32_t Pwd, uint8_t PwdMode);
byte_t par_list[8] = {0x00};
byte_t ks_list[8] = {0x00};
+ #define PRNG_SEQUENCE_LENGTH (1 << 16);
static uint32_t sync_time;
- static uint32_t sync_cycles;
+ static int32_t sync_cycles;
int catch_up_cycles = 0;
int last_catch_up = 0;
+ uint16_t elapsed_prng_sequences;
uint16_t consecutive_resyncs = 0;
int isOK = 0;
if (first_try) {
mf_nr_ar3 = 0;
sync_time = GetCountSspClk() & 0xfffffff8;
- sync_cycles = 65536; // theory: Mifare Classic's random generator repeats every 2^16 cycles (and so do the nonces).
+ sync_cycles = PRNG_SEQUENCE_LENGTH; // theory: Mifare Classic's random generator repeats every 2^16 cycles (and so do the tag nonces).
nt_attacked = 0;
- nt = 0;
par[0] = 0;
}
else {
LED_C_OFF();
- #define DARKSIDE_MAX_TRIES 32 // number of tries to sync on PRNG cycle. Then give up.
- uint16_t unsuccessfull_tries = 0;
+ #define MAX_UNEXPECTED_RANDOM 4 // maximum number of unexpected (i.e. real) random numbers when trying to sync. Then give up.
+ #define MAX_SYNC_TRIES 32
+ #define NUM_DEBUG_INFOS 8 // per strategy
+ #define MAX_STRATEGY 3
+ uint16_t unexpected_random = 0;
+ uint16_t sync_tries = 0;
+ int16_t debug_info_nr = -1;
+ uint16_t strategy = 0;
+ int32_t debug_info[MAX_STRATEGY][NUM_DEBUG_INFOS];
+ uint32_t select_time;
+ uint32_t halt_time;
for(uint16_t i = 0; TRUE; i++) {
break;
}
+ if (strategy == 2) {
+ // test with additional hlt command
+ halt_time = 0;
+ int len = mifare_sendcmd_short(NULL, false, 0x50, 0x00, receivedAnswer, receivedAnswerPar, &halt_time);
+ if (len && MF_DBGLEVEL >= 3) {
+ Dbprintf("Unexpected response of %d bytes to hlt command (additional debugging).", len);
+ }
+ }
+
+ if (strategy == 3) {
+ // test with FPGA power off/on
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ SpinDelay(200);
+ iso14443a_setup(FPGA_HF_ISO14443A_READER_MOD);
+ SpinDelay(100);
+ }
+
if(!iso14443a_select_card(uid, NULL, &cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Mifare: Can't select card");
continue;
}
+ select_time = GetCountSspClk();
- sync_time = (sync_time & 0xfffffff8) + sync_cycles + catch_up_cycles;
- catch_up_cycles = 0;
+ elapsed_prng_sequences = 1;
+ if (debug_info_nr == -1) {
+ sync_time = (sync_time & 0xfffffff8) + sync_cycles + catch_up_cycles;
+ catch_up_cycles = 0;
- // if we missed the sync time already, advance to the next nonce repeat
- while(GetCountSspClk() > sync_time) {
- sync_time = (sync_time & 0xfffffff8) + sync_cycles;
- }
+ // if we missed the sync time already, advance to the next nonce repeat
+ while(GetCountSspClk() > sync_time) {
+ elapsed_prng_sequences++;
+ sync_time = (sync_time & 0xfffffff8) + sync_cycles;
+ }
- // Transmit MIFARE_CLASSIC_AUTH at synctime. Should result in returning the same tag nonce (== nt_attacked)
- ReaderTransmit(mf_auth, sizeof(mf_auth), &sync_time);
+ // Transmit MIFARE_CLASSIC_AUTH at synctime. Should result in returning the same tag nonce (== nt_attacked)
+ ReaderTransmit(mf_auth, sizeof(mf_auth), &sync_time);
+ } else {
+ // collect some information on tag nonces for debugging:
+ #define DEBUG_FIXED_SYNC_CYCLES PRNG_SEQUENCE_LENGTH
+ if (strategy == 0) {
+ // nonce distances at fixed time after card select:
+ sync_time = select_time + DEBUG_FIXED_SYNC_CYCLES;
+ } else if (strategy == 1) {
+ // nonce distances at fixed time between authentications:
+ sync_time = sync_time + DEBUG_FIXED_SYNC_CYCLES;
+ } else if (strategy == 2) {
+ // nonce distances at fixed time after halt:
+ sync_time = halt_time + DEBUG_FIXED_SYNC_CYCLES;
+ } else {
+ // nonce_distances at fixed time after power on
+ sync_time = DEBUG_FIXED_SYNC_CYCLES;
+ }
+ ReaderTransmit(mf_auth, sizeof(mf_auth), &sync_time);
+ }
// Receive the (4 Byte) "random" nonce
if (!ReaderReceive(receivedAnswer, receivedAnswerPar)) {
int nt_distance = dist_nt(previous_nt, nt);
if (nt_distance == 0) {
nt_attacked = nt;
- }
- else {
+ } else {
if (nt_distance == -99999) { // invalid nonce received
- unsuccessfull_tries++;
- if (!nt_attacked && unsuccessfull_tries > DARKSIDE_MAX_TRIES) {
+ unexpected_random++;
+ if (unexpected_random > MAX_UNEXPECTED_RANDOM) {
isOK = -3; // Card has an unpredictable PRNG. Give up
break;
} else {
continue; // continue trying...
}
}
- sync_cycles = (sync_cycles - nt_distance);
- if (MF_DBGLEVEL >= 3) Dbprintf("calibrating in cycle %d. nt_distance=%d, Sync_cycles: %d\n", i, nt_distance, sync_cycles);
+ if (++sync_tries > MAX_SYNC_TRIES) {
+ if (strategy > MAX_STRATEGY || MF_DBGLEVEL < 3) {
+ isOK = -4; // Card's PRNG runs at an unexpected frequency or resets unexpectedly
+ break;
+ } else { // continue for a while, just to collect some debug info
+ debug_info[strategy][debug_info_nr] = nt_distance;
+ debug_info_nr++;
+ if (debug_info_nr == NUM_DEBUG_INFOS) {
+ strategy++;
+ debug_info_nr = 0;
+ }
+ continue;
+ }
+ }
+ sync_cycles = (sync_cycles - nt_distance/elapsed_prng_sequences);
+ if (sync_cycles <= 0) {
+ sync_cycles += PRNG_SEQUENCE_LENGTH;
+ }
+ if (MF_DBGLEVEL >= 3) {
+ Dbprintf("calibrating in cycle %d. nt_distance=%d, elapsed_prng_sequences=%d, new sync_cycles: %d\n", i, nt_distance, elapsed_prng_sequences, sync_cycles);
+ }
continue;
}
}
catch_up_cycles = 0;
continue;
}
+ catch_up_cycles /= elapsed_prng_sequences;
if (catch_up_cycles == last_catch_up) {
consecutive_resyncs++;
}
else {
sync_cycles = sync_cycles + catch_up_cycles;
if (MF_DBGLEVEL >= 3) Dbprintf("Lost sync in cycle %d for the fourth time consecutively (nt_distance = %d). Adjusting sync_cycles to %d.\n", i, -catch_up_cycles, sync_cycles);
+ last_catch_up = 0;
+ catch_up_cycles = 0;
+ consecutive_resyncs = 0;
}
continue;
}
consecutive_resyncs = 0;
// Receive answer. This will be a 4 Bit NACK when the 8 parity bits are OK after decoding
- if (ReaderReceive(receivedAnswer, receivedAnswerPar))
- {
+ if (ReaderReceive(receivedAnswer, receivedAnswerPar)) {
catch_up_cycles = 8; // the PRNG is delayed by 8 cycles due to the NAC (4Bits = 0x05 encrypted) transfer
- if (nt_diff == 0)
- {
+ if (nt_diff == 0) {
par_low = par[0] & 0xE0; // there is no need to check all parities for other nt_diff. Parity Bits for mf_nr_ar[0..2] won't change
}
mf_nr_ar[3] &= 0x1F;
+
+ if (isOK == -4) {
+ if (MF_DBGLEVEL >= 3) {
+ for (uint16_t i = 0; i <= MAX_STRATEGY; i++) {
+ for(uint16_t j = 0; j < NUM_DEBUG_INFOS; j++) {
+ Dbprintf("collected debug info[%d][%d] = %d", i, j, debug_info[i][j]);
+ }
+ }
+ }
+ }
byte_t buf[28];
memcpy(buf + 0, uid, 4);
#include "string.h"
#include "lfdemod.h"
#include "lfsampling.h"
-#include "usb_cdc.h"
-
+#include "usb_cdc.h" //test
/**
* Function to do a modulation and then get samples.
}
}
+
+
void WriteTIbyte(uint8_t b)
{
int i = 0;
}
}
+
+
+
// arguments: 64bit data split into 32bit idhi:idlo and optional 16bit crc
// if crc provided, it will be written with the data verbatim (even if bogus)
// if not provided a valid crc will be computed from the data and written.
void WriteTItag(uint32_t idhi, uint32_t idlo, uint16_t crc)
{
+
+
FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
if(crc == 0) {
crc = update_crc16(crc, (idlo)&0xff);
if(num_blocks == 4) break;
}
memcpy(outBlocks, Blocks, 16*num_blocks);
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+
return num_blocks;
}
Dbprintf("Memory content:");
Dbprintf("-----------------------------------------");
for(i=0; i<max_blocks; i++) {
- if(Blocks[i][ALLOC]==1)
+ if(Blocks[i][ALLOC]==1){
Dbprintf("%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
Blocks[i][0], Blocks[i][1], Blocks[i][2], Blocks[i][3], Blocks[i][4], Blocks[i][5], Blocks[i][6], Blocks[i][7],
Blocks[i][8], Blocks[i][9], Blocks[i][10], Blocks[i][11], Blocks[i][12], Blocks[i][13], Blocks[i][14], Blocks[i][15]);
- else
+ }else
Dbprintf("<missing block %d>", i);
}
Dbprintf("-----------------------------------------");
+
return ;
}
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
LED_D_OFF();
}
+
+
+#define T0_PCF 8 //period for the pcf7931 in us
+
+/* Write on a byte of a PCF7931 tag
+ * @param address : address of the block to write
+ @param byte : address of the byte to write
+ @param data : data to write
+ */
+void WritePCF7931(uint8_t pass1, uint8_t pass2, uint8_t pass3, uint8_t pass4, uint8_t pass5, uint8_t pass6, uint8_t pass7, uint16_t init_delay, int32_t l, int32_t p, uint8_t address, uint8_t byte, uint8_t data)
+{
+
+ uint32_t tab[1024]={0}; // data times frame
+ uint32_t u = 0;
+ uint8_t parity = 0;
+ bool comp = 0;
+
+
+ //BUILD OF THE DATA FRAME
+
+ //alimentation of the tag (time for initializing)
+ AddPatternPCF7931(init_delay, 0, 8192/2*T0_PCF, tab);
+
+ //PMC
+ Dbprintf("Initialization delay : %d us", init_delay);
+ AddPatternPCF7931(8192/2*T0_PCF + 319*T0_PCF+70, 3*T0_PCF, 29*T0_PCF, tab);
+
+ Dbprintf("Offsets : %d us on the low pulses width, %d us on the low pulses positions", l, p);
+
+ //password indication bit
+ AddBitPCF7931(1, tab, l, p);
+
+
+ //password (on 56 bits)
+ Dbprintf("Password (LSB first on each byte) : %02x %02x %02x %02x %02x %02x %02x", pass1,pass2,pass3,pass4,pass5,pass6,pass7);
+ AddBytePCF7931(pass1, tab, l, p);
+ AddBytePCF7931(pass2, tab, l, p);
+ AddBytePCF7931(pass3, tab, l, p);
+ AddBytePCF7931(pass4, tab, l, p);
+ AddBytePCF7931(pass5, tab, l, p);
+ AddBytePCF7931(pass6, tab, l, p);
+ AddBytePCF7931(pass7, tab, l, p);
+
+
+ //programming mode (0 or 1)
+ AddBitPCF7931(0, tab, l, p);
+
+ //block adress on 6 bits
+ Dbprintf("Block address : %02x", address);
+ for (u=0; u<6; u++)
+ {
+ if (address&(1<<u)) { // bit 1
+ parity++;
+ AddBitPCF7931(1, tab, l, p);
+ } else{ // bit 0
+ AddBitPCF7931(0, tab, l, p);
+ }
+ }
+
+ //byte address on 4 bits
+ Dbprintf("Byte address : %02x", byte);
+ for (u=0; u<4; u++)
+ {
+ if (byte&(1<<u)) { // bit 1
+ parity++;
+ AddBitPCF7931(1, tab, l, p);
+ } else{ // bit 0
+ AddBitPCF7931(0, tab, l, p);
+ }
+ }
+
+ //data on 8 bits
+ Dbprintf("Data : %02x", data);
+ for (u=0; u<8; u++)
+ {
+ if (data&(1<<u)) { // bit 1
+ parity++;
+ AddBitPCF7931(1, tab, l, p);
+ } else{ //bit 0
+ AddBitPCF7931(0, tab, l, p);
+ }
+ }
+
+
+ //parity bit
+ if((parity%2)==0){
+ AddBitPCF7931(0, tab, l, p); //even parity
+ }else{
+ AddBitPCF7931(1, tab, l, p);//odd parity
+ }
+
+ //time access memory
+ AddPatternPCF7931(5120+2680, 0, 0, tab);
+
+ //conversion of the scale time
+ for(u=0;u<500;u++){
+ tab[u]=(tab[u] * 3)/2;
+ }
+
+
+ //compennsation of the counter reload
+ while (!comp){
+ comp = 1;
+ for(u=0;tab[u]!=0;u++){
+ if(tab[u] > 0xFFFF){
+ tab[u] -= 0xFFFF;
+ comp = 0;
+ }
+ }
+ }
+
+ SendCmdPCF7931(tab);
+}
+
+
+
+/* Send a trame to a PCF7931 tags
+ * @param tab : array of the data frame
+ */
+
+void SendCmdPCF7931(uint32_t * tab){
+ uint16_t u=0;
+ uint16_t tempo=0;
+
+ Dbprintf("SENDING DATA FRAME...");
+
+ FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
+
+ FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
+
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_PASSTHRU );
+
+ LED_A_ON();
+
+ // steal this pin from the SSP and use it to control the modulation
+ AT91C_BASE_PIOA->PIO_PER = GPIO_SSC_DOUT;
+ AT91C_BASE_PIOA->PIO_OER = GPIO_SSC_DOUT;
+
+ //initialization of the timer
+ AT91C_BASE_PMC->PMC_PCER |= (0x1 << 12) | (0x1 << 13) | (0x1 << 14);
+ AT91C_BASE_TCB->TCB_BMR = AT91C_TCB_TC0XC0S_NONE | AT91C_TCB_TC1XC1S_TIOA0 | AT91C_TCB_TC2XC2S_NONE;
+ AT91C_BASE_TC0->TC_CCR = AT91C_TC_CLKDIS; // timer disable
+ AT91C_BASE_TC0->TC_CMR = AT91C_TC_CLKS_TIMER_DIV3_CLOCK; //clock at 48/32 MHz
+ AT91C_BASE_TC0->TC_CCR = AT91C_TC_CLKEN;
+ AT91C_BASE_TCB->TCB_BCR = 1;
+
+
+ tempo = AT91C_BASE_TC0->TC_CV;
+ for(u=0;tab[u]!= 0;u+=3){
+
+
+ // modulate antenna
+ HIGH(GPIO_SSC_DOUT);
+ while(tempo != tab[u]){
+ tempo = AT91C_BASE_TC0->TC_CV;
+ }
+
+ // stop modulating antenna
+ LOW(GPIO_SSC_DOUT);
+ while(tempo != tab[u+1]){
+ tempo = AT91C_BASE_TC0->TC_CV;
+ }
+
+
+ // modulate antenna
+ HIGH(GPIO_SSC_DOUT);
+ while(tempo != tab[u+2]){
+ tempo = AT91C_BASE_TC0->TC_CV;
+ }
+
+
+ }
+
+ LED_A_OFF();
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ SpinDelay(200);
+
+
+ AT91C_BASE_TC0->TC_CCR = AT91C_TC_CLKDIS; // timer disable
+ DbpString("FINISH !");
+ DbpString("(Could be usefull to send the same trame many times)");
+ LED(0xFFFF, 1000);
+}
+
+
+/* Add a byte for building the data frame of PCF7931 tags
+ * @param b : byte to add
+ * @param tab : array of the data frame
+ * @param l : offset on low pulse width
+ * @param p : offset on low pulse positioning
+ */
+
+bool AddBytePCF7931(uint8_t byte, uint32_t * tab, int32_t l, int32_t p){
+
+ uint32_t u;
+ for (u=0; u<8; u++)
+ {
+ if (byte&(1<<u)) { //bit à 1
+ if(AddBitPCF7931(1, tab, l, p)==1)return 1;
+ } else { //bit à 0
+ if(AddBitPCF7931(0, tab, l, p)==1)return 1;
+ }
+ }
+
+ return 0;
+}
+
+/* Add a bits for building the data frame of PCF7931 tags
+ * @param b : bit to add
+ * @param tab : array of the data frame
+ * @param l : offset on low pulse width
+ * @param p : offset on low pulse positioning
+ */
+bool AddBitPCF7931(bool b, uint32_t * tab, int32_t l, int32_t p){
+ uint8_t u = 0;
+
+ for(u=0;tab[u]!=0;u+=3){} //we put the cursor at the last value of the array
+
+
+ if(b==1){ //add a bit 1
+ if(u==0) tab[u] = 34*T0_PCF+p;
+ else tab[u] = 34*T0_PCF+tab[u-1]+p;
+
+ tab[u+1] = 6*T0_PCF+tab[u]+l;
+ tab[u+2] = 88*T0_PCF+tab[u+1]-l-p;
+ return 0;
+ }else{ //add a bit 0
+
+ if(u==0) tab[u] = 98*T0_PCF+p;
+ else tab[u] = 98*T0_PCF+tab[u-1]+p;
+
+ tab[u+1] = 6*T0_PCF+tab[u]+l;
+ tab[u+2] = 24*T0_PCF+tab[u+1]-l-p;
+ return 0;
+ }
+
+
+ return 1;
+}
+
+/* Add a custom pattern in the data frame
+ * @param a : delay of the first high pulse
+ * @param b : delay of the low pulse
+ * @param c : delay of the last high pulse
+ * @param tab : array of the data frame
+ */
+bool AddPatternPCF7931(uint32_t a, uint32_t b, uint32_t c, uint32_t * tab){
+ uint32_t u = 0;
+ for(u=0;tab[u]!=0;u+=3){} //we put the cursor at the last value of the array
+
+ if(u==0) tab[u] = a;
+ else tab[u] = a + tab[u-1];
+
+ tab[u+1] = b+tab[u];
+ tab[u+2] = c+tab[u+1];
+
+ return 0;
+}
\ No newline at end of file
case -1 : PrintAndLog("Button pressed. Aborted.\n"); break;\r
case -2 : PrintAndLog("Card is not vulnerable to Darkside attack (doesn't send NACK on authentication requests).\n"); break;\r
case -3 : PrintAndLog("Card is not vulnerable to Darkside attack (its random number generator is not predictable).\n"); break;\r
+ case -4 : PrintAndLog("Card is not vulnerable to Darkside attack (its random number generator seems to be based on the wellknown");\r
+ PrintAndLog("generating polynomial with 16 effective bits only, but shows unexpected behaviour.\n"); break;\r
default: ;\r
}\r
break;\r
//-----------------------------------------------------------------------------
// Copyright (C) 2012 Chalk <chalk.secu at gmail.com>
-//
+// 2015 Dake <thomas.cayrou at gmail.com>
+
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
// at your option, any later version. See the LICENSE.txt file for the text of
// the license.
static int CmdHelp(const char *Cmd);
+struct pcf7931_config configPcf = {{0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF},17500,{0,0}};
+
int CmdLFPCF7931Read(const char *Cmd)
{
UsbCommand c = {CMD_PCF7931_READ};
return 0;
}
+int CmdLFPCF7931Config(const char *Cmd)
+{
+ int res = 0;
+ res = sscanf(Cmd, "%02x %02x %02x %02x %02x %02x %02x %d %d %d", &configPcf.password[0], &configPcf.password[1], &configPcf.password[2], &configPcf.password[3], &configPcf.password[4], &configPcf.password[5], &configPcf.password[6], &configPcf.init_delay, &configPcf.offset[0], &configPcf.offset[1]);
+
+ if (res >= 7 || res < 1){
+ if(res == 7) configPcf.init_delay = 17500; //default value
+
+ if(res<=8){
+ configPcf.offset[0] = 0; //default value
+ configPcf.offset[1] = 0; //default value
+ }
+
+ if(res < 1){
+ PrintAndLog("Usage: <password byte 1 (in hex, lsb first)> <password byte 2 (in hex, lsb first)> [...] <password byte 7 (in hex, lsb first)> <tag initialization delay (in us)> <optional : offset on the low pulses width (in us)> <optional : offset on the low pulses position (in us)>");
+ PrintAndLog("The time offsets could be usefull to correct slew rate generated by the antenna.");
+ }
+
+ PrintAndLog("Current configuration :");
+ PrintAndLog("Password (LSB first on each byte) : %02x %02x %02x %02x %02x %02x %02x", configPcf.password[0], configPcf.password[1], configPcf.password[2], configPcf.password[3], configPcf.password[4], configPcf.password[5], configPcf.password[6]);
+ PrintAndLog("Tag initialization delay : %d us", configPcf.init_delay);
+ PrintAndLog("Offsets : %d us on the low pulses width, %d us on the low pulses positions", configPcf.offset[0], configPcf.offset[1]);
+
+ return 0;
+ }
+
+ //default values
+ configPcf.password[0] = 0xFF;
+ configPcf.password[1] = 0xFF;
+ configPcf.password[2] = 0xFF;
+ configPcf.password[3] = 0xFF;
+ configPcf.password[4] = 0xFF;
+ configPcf.password[5] = 0xFF;
+ configPcf.password[6] = 0xFF;
+
+ configPcf.init_delay = 17500;
+ configPcf.offset[0] = 0;
+ configPcf.offset[1] = 0;
+
+ PrintAndLog("Incorrect format");
+ PrintAndLog("Examples of right usage : lf pcf7931 config 11 22 33 44 55 66 77 20000");
+ PrintAndLog(" lf pcf7931 config FF FF FF FF FF FF FF 17500 -10 30");
+ return 0;
+}
+
+
+
+int CmdLFPCF7931Write(const char *Cmd)
+{
+ UsbCommand c = {CMD_PCF7931_WRITE};
+
+ int res = 0;
+ res = sscanf(Cmd, "%x %x %x", &c.arg[0], &c.arg[1], &c.arg[2]);
+
+ if(res < 1) {
+ PrintAndLog("Please specify the block address in hex");
+ return 0;
+ }
+ if (res == 1){
+ PrintAndLog("Please specify the byte address in hex");
+ return 0;
+ }
+ if(res == 2) {
+ PrintAndLog("Please specify the data in hex (1 byte)");
+ return 0;
+ }
+ if(res == 3) {
+ uint8_t n=0;
+ for(n=0;n<7;n++) c.d.asDwords[n] = configPcf.password[n];
+ c.d.asDwords[7] = (configPcf.offset[0]+128);
+ c.d.asDwords[8] = (configPcf.offset[1]+128);
+ c.d.asDwords[9] = configPcf.init_delay;
+ SendCommand(&c);
+ return 0;
+ }
+
+ PrintAndLog("INCORRECT FORMAT");
+ return 0;
+}
+
+
static command_t CommandTable[] =
{
{"help", CmdHelp, 1, "This help"},
{"read", CmdLFPCF7931Read, 1, "Read content of a PCF7931 transponder"},
+ {"write", CmdLFPCF7931Write, 1, "Write data on a PCF7931 transponder. Usage : lf pcf7931 write <bloc address> <byte address> <data>"},
+ {"config", CmdLFPCF7931Config, 1, "Configure the password, the tags initialization delay and time offsets (optional)"},
{NULL, NULL, 0, NULL}
};
//-----------------------------------------------------------------------------
// Copyright (C) 2012 Chalk <chalk.secu at gmail.com>
-//
+// 2015 Dake <thomas.cayrou at gmail.com>
+
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
// at your option, any later version. See the LICENSE.txt file for the text of
// the license.
#ifndef CMDLFPCF7931_H__
#define CMDLFPCF7931_H__
+struct pcf7931_config{
+ uint8_t password[7];
+ uint16_t init_delay;
+ int16_t offset[2];
+};
+
int CmdLFPCF7931(const char *Cmd);
int CmdLFPCF7931Read(const char *Cmd);
+int CmdLFPCF7931Write(const char *Cmd);
+
+int CmdLFPCF7931Config(const char *Cmd);
+
#endif
return nil, "Card is not vulnerable to Darkside attack (doesn't send NACK on authentication requests). You can try 'script run mfkeys' or 'hf mf chk' to test various known keys."
elseif isOK == 0xFFFFFFFD then
return nil, "Card is not vulnerable to Darkside attack (its random number generator is not predictable). You can try 'script run mfkeys' or 'hf mf chk' to test various known keys."
+ elseif isOK == 0xFFFFFFFC then
+ return nil, "The card's random number generator behaves somewhat weird (Mifare clone?). You can try 'script run mfkeys' or 'hf mf chk' to test various known keys."
elseif isOK ~= 1 then
return nil, "Error occurred"
end
#define CMD_T55XX_WRITE_BLOCK 0x0215
#define CMD_T55XX_READ_TRACE 0x0216
#define CMD_PCF7931_READ 0x0217
+#define CMD_PCF7931_WRITE 0x0222
#define CMD_EM4X_READ_WORD 0x0218
#define CMD_EM4X_WRITE_WORD 0x0219
#define CMD_IO_DEMOD_FSK 0x021A
#define CMD_PSK_SIM_TAG 0x0220
#define CMD_AWID_DEMOD_FSK 0x0221
+
/* CMD_SET_ADC_MUX: ext1 is 0 for lopkd, 1 for loraw, 2 for hipkd, 3 for hiraw */
// For the 13.56 MHz tags
projects / proxmark3-svn / commitdiff